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authorHui Zhu <teawaterz@linux.alibaba.com>2019-09-23 15:39:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-24 15:54:12 -0700
commitc165f25d23ecb2f9f121ced20435415b931219e2 (patch)
tree150a2e87f86087e88c69ad589ed6fe08af64960e /mm/zsmalloc.c
parent28eb3c80871951cae59b9c1b7385262e5d045ac3 (diff)
downloadlinux-c165f25d23ecb2f9f121ced20435415b931219e2.tar.gz
zpool: add malloc_support_movable to zpool_driver
As a zpool_driver, zsmalloc can allocate movable memory because it support
migate pages.  But zbud and z3fold cannot allocate movable memory.

Add malloc_support_movable to zpool_driver.  If a zpool_driver support
allocate movable memory, set it to true.  And add
zpool_malloc_support_movable check malloc_support_movable to make sure if
a zpool support allocate movable memory.

Link: http://lkml.kernel.org/r/20190605100630.13293-1-teawaterz@linux.alibaba.com
Signed-off-by: Hui Zhu <teawaterz@linux.alibaba.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Vitaly Wool <vitalywool@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/zsmalloc.c')
-rw-r--r--mm/zsmalloc.c19
1 files changed, 10 insertions, 9 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index e98bb6ab4f7e..646858efd468 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -443,15 +443,16 @@ static u64 zs_zpool_total_size(void *pool)
 }
 
 static struct zpool_driver zs_zpool_driver = {
-	.type =		"zsmalloc",
-	.owner =	THIS_MODULE,
-	.create =	zs_zpool_create,
-	.destroy =	zs_zpool_destroy,
-	.malloc =	zs_zpool_malloc,
-	.free =		zs_zpool_free,
-	.map =		zs_zpool_map,
-	.unmap =	zs_zpool_unmap,
-	.total_size =	zs_zpool_total_size,
+	.type =			  "zsmalloc",
+	.owner =		  THIS_MODULE,
+	.create =		  zs_zpool_create,
+	.destroy =		  zs_zpool_destroy,
+	.malloc_support_movable = true,
+	.malloc =		  zs_zpool_malloc,
+	.free =			  zs_zpool_free,
+	.map =			  zs_zpool_map,
+	.unmap =		  zs_zpool_unmap,
+	.total_size =		  zs_zpool_total_size,
 };
 
 MODULE_ALIAS("zpool-zsmalloc");